EditorialPiece of Corundum Crystal, China, 20th century, China, Corundum crystal, H. 3/4 in. (1.9 cm); W. 3/4 in. (1.9 cm); L. 1 1/8 in. (2.9 cm), Hardstone.
EditorialBrooch of gold with nine colored gems, Brooch of gold with nine colored gems. The sides of the brooch are cut open, so that the light behind the stones can come in, which provides extra sparkle. The stones are of eight different types, including tour l...
EditorialPrecious stones including diamond, corundum, ruby, sapphire, chrysoberyl, alexandrite, zircon, hyacinth, emerald and beryl. Chromolithograph from Dr. Adolph Kenngott's "Mineralogy" section in Gotthilf Heinrich von Schubert's "Naturgeschichte," Schreibe...